1980-1993. The BX platform, developed Volkswagen's Brazilian subsidiary (Volkswagen do Brasil), again borrowed heavily from the Audi 80 (Fox/4000) of the day. The BX platform was used for the Brazilian Volkswagen Gol, Voyage (Gacel or Senda - In Argentina, and Fox in the U.S.), Parati (Amazon in U.S.), Saveiro (pickup) and Furgão (van) models. The Gol/Fox was quite unique in that it started life with a four-cylinder Volkswagen air-cooled engine (borrowed from the Volkswagen Beetle), and eventually ended up with a more modern water-cooled engine, being sold in the US for the first time as a 1987 model. The VW BX family was restyled in 1987 and 1991.[1]

Still an Audi derived platform, this time based on the Audi 80/4000, again, including its longitudinal engine placement and, on some European models, the quattrofour-wheel drive system, rebranded Syncro for Volkswagen cars. The Santana (facelifted) was produced until 2012 in China.[2]

Volkswagen Passat B2 (Typ 32B, 1981–1988; 1984-2012 in China; 1982-1988 in the US where it was sold as the Quantum)

The B3 Volkswagen Passat was the first B platform car to be called Passat in the United States. The B3 was also the first Passat with an independently designed platform, it did not share parts with Audi models. Instead, the design borrowed heavily from the Volkswagen Group A2 platform.

(The Volkswagen Corrado was an A2 platform car, but it borrowed heavily from the B3 platform for ancillary components)

The "B3" designation is also used to refer to the "Typ 89" version of the Audi 80/90 produced from 1987 to 1992 and the "Typ 8B" Audi Coupé and S2. However these are not based on the same platform as the "B3" Passat.

The designation "B6" is used to identify the "Typ 8E" Audi A4/S4 produced from late 2000 to 2005. The platform used by these models is formally known as the PL46 platform.

Confusingly, the current generations of Volkswagen's Passat are also colloquially referred to as "B6", given that they are Volkswagen's sixth generation mid-sized saloon. However this generation of the Passat uses the PQ46 platform for its sixth generation, an improved enlarged version of the Golf Mk5 and Jetta Mk5's PQ35 platform.

The Audi A4, S4 and RS4 has a "B7" generation, from 2005 to 2008. However, this seventh generation of the car was a minor revision of the PL46 platform, but with major revisions to engine ranges, suspension revisions, updated chassis and consumer electronics, and restyled bodywork. The B7 A4/S4 retains the Typ 8E/8H numbers of the B6 A4/S4, though with different suffixes, while the SEAT Exeo though it has derived from the Audi A4 B7 takes the Typ 3R number.

The MLB (Modularer Längsbaukasten in German) or MLP (Modular Longitudinal Platform) component matrix is used in the "B8" generation Audi A4 among other models. This is noteworthy for placing the front differential ahead of the clutch, allowing the front axle to be moved forward 4 inches. This results in an increase in wheelbase and a slightly more rearward weight distribution for better vehicle dynamics.